Holder for razor blades



I United States Patent 1111 3 55 55 [72] inventors Philipp G. Grefe [56]References Cited Braintree; UNITED STATES PATENTS Edward Lemk'fiing'mmi1,559,395 /1925 Withers 269/49X :gggg m 1,726,155 8/1929 Knudsen 118/503"123 1969 2,542,719 2/1951 Sprague 118/503 Divison ofser' No. 403693,Oct. 5, 1964, 2,804,893 9/1957 Carper 269/52X Patent No. 3,498,257,Continuation of Primary Emmi/{WHOM r m Sen Nm 331,080, Dem w 1963,abandoned, Attorneys-Phillp Colman and O1ste1n J. Brathe Continuation ofSer. No. 30,265, May 19,

P l d gg ABSTRACT: Apparatus for treating razor blades wherein aThe'cfliem Com an stack of razor blades disposed in a holder issuccessively I 1 551g 6 Mon Mass p y passed through a blade cleaningunit, a preheater, a spraying unit for depositing a thin coating ofshaving facilitating materia f pi'ffff' al on the blade edges, a heatingunit for curing said material, and a cooling unit. The blades arecontained loosely in the l blade holder while passing through thecleaning unit to permit [54] nOLPER g R S BLADES them to be thoroughlycleaned and are thereafter clamped 5 Clams6 rawmg together in a compactstack for subsequent treatment. The

[52] US. Cl 118/503 cleaning unit includes a plurality of noules, theoperation of [51] Int. Cl. B05c 11/14 which is in timed relationshipwith the conveyor so that only Field of Search 118/502, those nozzleswhich are opposite specific holder locations on 503; 269/49, 52, 48, 47the conveyor emit cleaning fluid.

.5 Z L- l f //4 l9 a tn {2M6 l J l /I T l I 1 l 97 In M 9 79 f/f 9/ 2 wa! i, 9/ Z2 22 1/ 97 f2 7 i {5 1 I w Soooocfbo'ooo 9 DOOO OOOQOO ,9; //Z,DOOOOOOQQOO HOLDER FOR RAZOR BLADES This application is a division ofcopending application Ser. No. 403,693, filed Oct. 5, 1964, now US. Pat.No. 3,498,257, which is a continuation of application Ser. No. 331,080,filed Dec. 10, 1963, now abandoned, which was a continuation ofapplication Ser. No. 30,265 filed May 19, 1960, now abandoned.-

This invention relates to a razor blade holder for stably supporting astack of razor blades so as to permit them to be subjected to varioustreatments as described in our above identified U.S. Pat. No. 3,498,257the disclosure of which is incorporated herein by reference withoutremoval.

An a object of the invention is to provide a holder for a stack of razorblades adapted to be carried stably by conveyors and subjected to.various manipulations while shielding thedelicate blades edges frombecoming damaged and yet maintaining the blades fully exposed forvarious types of treatments.

A more specific object is to provide a holder for holding a stack ofblades loosely in a fully exposed position to pennit them to he riffledwhile subjected to fluid cleaning sprays, and to be subsequently clampedtogether into a compact stack for edge treatments.

Other objects, featuresand advantages of the invention will beappreciated from the following description of a particular embodimentthereof together with a particular apparatus and process for treatingblades disclosed in our U.S. Pat. No. 3,498,257 for which it isparticularly advantageous, as illustrated in the drawing in which:

F 1G. 1 is a plan view of a blade holder;

FIG. 2 is an elevational side view of the blade holder;

FIG. 3 is an end view of the blade holder as seen from the left of FIG.2;

P10. 4 is a sectional view of the blade holder taken on line 7 4-4 ofFIG. 2;

FIG. 5 is an end view of the blade holder as seen from the right of FIG.2;

FIG. 6 is a fragmentary view of the blade spindle of FIG. 2 holding astack of double edged razor blades.

As shown in F IGS. l and 2 the blade holder 68 comprises a generallyrectangular base 70, a vertically extending bracket 72 rigidly securedto the base near the rear end thereof and a blade supporting spindle 74extending horizontally forwardly from the bracket centrally of and abovethe base 70. The bottom of the base 70 is provided with a transverserectangular ansinge fixftirereoeiving guide members for guiding theholder when it is laterally displaced. The forward end of the undersideof the base is provided with an upwardly extending bevel 78 for guidingthe holder when it is pushed up on a platform. Opening 79 and a forwardrecess 80 in the base 70 permit free circulation of air from beneath theholder and about the blades mounted on the spindle 74. The forward endof the spindle 74 is rounded off. in elevation and is beveled to a dulledge to permit ease of insertion in the central slot of a stack ofdouble edged razor blades. The spindle is provided with a plurality ofapertures 82 arranged equidistantly in three straight rows parallel tothe sides of the spindle and the rear end thereof is forked to provide arearwardly extending cutout 83 to receive the central solid portion 84between longitudinal slots 86 in the top and bottom of a blade clampingmember 85. The forked end of the spindle is received within a verticalslot 87 in the front face of the bracket and is rigidly secured theretoas by a pair of dowel pins or rivets 88. The blade clamping member 85 iscarried by a pair of vertically and transversely offset horizontal rods90 and 91 slidably mounted in bores extending through the bracket 72 andrigidly secured to the clamping member. A clamping screw 89 extendsthrough the bracket 72 in threaded engagement therewith and bearsagainst the rear face of the clamping member 85 to move it forwardly.The clamping member 85 is biased rearwardly by springs 92 confinedbetween heads 93 on the rods 90 and 91 and the bottom ends of recesses94 formed in the rear face of the bracket 72 Vertical marginal flanges95 extend forwardly fromthe front face of the blade clamping member forengaging the rearmost blade of the blade stack mounted on the spindle 74inside the sharpened beveled edges thereof. The spindle 74 is sodimensioned in cross section that it will be received within thelongitudinal slot ina doubleedged razor blade without undue play eithervertically or laterally. A forked blade retaining member 96 is slidablymounted on the spindle 74 and the rear face thereof is provided with apair of rearwardly extending marginal flanges 97 spaced and arranged soas to engage the foremost blade of a blade stack mounted on the spindle,like the flanges of the blade clamping member 85 engage the rearmostblade. An L- shaped locking member 98 is swingably mounted about a pivotpin 100 on the front face of the retaining member 96 and carries alocking pin 102 adapted to extend through one of the apertures 82 in thecentral row to lock the retaining member 96 in position on the spindle74. A knurled finger grip 104 is secured to and extends forwardly fromthe locking member 98 which can be swung thereby to the dotted positionwherein the retaining member 96 can be removed from the spindle 74 topermit either loading or unloading of blades. The base 70 is providedwith a recess 106 in the rear end of for receiving pusher lugs or studscarried by the conveyor chains 22 and 44. To load the blades on theholder, the retaining member 96 is removed as described above and theclamping screw 89 is backed off permitting the clamping member 85 to bemoved to the right by the return spring 92. A stack of the razor blades108, FIG. 6, is now slid on the spindle 74 against the flanges 95 of theclamping member 85. The retaining member 96 is placed on the spindle 74in front of the stack of razor blades and the locking pin 102 is causedto engage the nearest one of the apertures 82 that will leave at least aquarter of an inch between the retaining member 96 and the front end ofthe blade stack. This will permit the blades to flutter on the spindleunder the impact of cleaning fluid spray and the drying air stream tothoroughly clean and dry the blades. The blades can be clamped togetherfirmlyduring the blade coating steps of the process described in' ourabove identified Patent 3,498,257 and to this end the clamping screw 89is screwed inwardly thus displacing the clamping member 85 towards theretaining member 96 to apply pressure against the opposite ends of theblade stack.

It should be noted that the sides of the base 70 extend laterally welloutside of theedges of the blade so as to protect them against damage ifthe holder should hit up against some object.

Having thus described our invention with particular reference to anillustrative embodiment thereof it will be obvious to those skilled inthe art to which the invention pertains that various changes andmodifications may be made therein without departing from the spirit andscope of our invention.

We claim:

1. A blade holder for a stack of razor blades comprising a base, bladesupporting means disposed in spaced relation to said base for supportinga plurality of razor blades in a stack with their cutting edges inparallel relation above and spaced from said base, first blade securingmeans for securing a stack of blades on said supporting means whilepermitting limited relative movement between individualblades in thestack, and second blade securing means cooperating with said first bladesecuring means and said supporting means for clamping said stack ofblades together in a compact stack on said holder so that only the bladeedges of intermediate blades are exposed.

2. A blade holder for a stack of razor blades comprising a base, bladesupporting means disposed in spaced relation to said base for supportinga plurality of razor blades in a stack with their cutting edges inparallel relation above and spaced from said base such that air may flowfreely between said supported stack of blades and said base, first bladesecuring means including an adjustable stop and a resiliently mountedstop for securing a stack of blades on said supporting means betweensaid stops while permitting limited relative movement between individualblades in the stack, and blade clamping meanscooperating with saidresiliently mounted stop and said supporting means for moving saidresiliently mounted stop towards said adjustable stop for clamping saidstack of blades firmly together in a compact stack on said holder sothat only the blade edges of intermediate blades are exposed.

3. A blade holder for holding a stack of razor blades comprising a baseincluding an upwardly extending bracket, a straight blade supportingspindle on said bracket extending substantially horizontally therefromabove and spaced from said base, said spindle terminating in a freelysupported end and being dimensioned to be received within elongatedapertures in the razor blades, and removable blade retaining meansslidably supported on said blade supporting spindle including lockingmeans engageable with said spindle for securing said retaining meansselectively in a plurality of positions along said supporting spindle.

4. A blade holder for holding a stack of razor blades comprising a baseincluding an upwardly extending bracket, a straight perforated bladesupporting spindle on said bracket extending substantially horizontallytherefrom above and spaced from said base, said spindle terminating in afreely supported end and being dimensioned to be received withinelongated apertures in the razor blades, and removable blade retainingmeans slidably supported on said blade supporting spindle includinglocking means cooperating with the perforations in said supportingspindle for securing said retaining means selectively in a plurality ofpositions therealong.

5. A blade holder for holding a plurality of razor blades in stackfashion comprising a base including upwardly extending bracket means, astraight blade supporting spindle extending K from said bracket meansand having a freely supported end, said spindle being spaced fromsaid'base and dimensioned to be received within apertures in the razorblades, removable blade retaining means slidable on said spindleincluding locking means for adjustably locking said retaining means onsaid spindle, and releasable blade clamping means between said retainingmeans and said bracket means and arranged to move along said spindletoward and away from said bracket.

